Ioan VIRCA


34-37 PROCES PROPUS PENTRU SINTERIZAREA COMBINATĂ A PULBERILOR METALICE

PROCESS PROPOSED FOR COMBINED SINTERIZATION OF METAL POWDERS
Starting from the analysis of two modern sintering methods for metallic powders, respectively sintering in the mold and electro sintering, and knowing the technological possibilities of lamps discharged in gas, with high intensity, in the present paper the author proposes a new sintering process combining electro sintering with the action of optical radiation impulses emitted by lamps discharged in gas. The recommended electro technical regime and scheme of the experimental plant are described in detail in the article.
Keywords: metallic powders, electro sintering, sintering in the mold, optical radiation pulses, gas discharge lamps, hardening surface
Cuvinte cheie: pulberi metalice, electro sinterizare, sinterizare în matriță, impulsuri de radiație optică, lămpi cu descărcare în gaz, suprafață de întărire

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32-39 STADIUL ACTUAL AL TRATAMENTELOR SUPERFICIALE CU RADIAŢII ELECTROMAGNETICE ŞI POSIBILITĂŢI DE EXTINDERE A ARIEI DE APLICABILITATE

surface treatment on the current state

of electromagnetic radiation and

opportunities for expansion scope

 

In the presents paper the author analyses the current state of superficial treatments with electromagnetic fields, in terms of the purpose and role within the manufacturing processes of parts and ways of energy generation and transmission parts to the surface. The author presents a technological solution suite which consists in the use of gas discharge lamps what emitting pulses of optical radiation for the surface treatment of parts. This solution thus extend the surface treatments with electromagnetic fields, constituting an alternative technology that are of interest to local selective surface hardening of machine parts and for the formation of protective film, cleaning and polishing surfaces.

 

Keywords: surface treatment, electromagnetic radiation, optical radiation pulses, gas discharge lamps, hardening surface

Cuvinte cheie: tratament de suprafață, radiații electromagnetice, pulsuri de radiații optice, lămpi cu descărcare de gaz, suprafață de întărire

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